Here's a little trick that's pretty fun and can help you put that personal touch on your dock. Find a .png file you think would look pretty cool as a replacement icon for your dock Go to Finder>Applications Highlight the application you want to modify and hit (Command+I) or simply File>Get Info A little info window should pop up showing you all the details of the application. To insert your new icon, simply drag it over the picture in the top left of the information panel. You should have a finished product that looks something like this Fairly simple, but not a lot of people know you can do this. Lemme know if you need any help!